my father has 2 venous ulcers mid calf on the back of legs has been and is still being treated by nurese practioner/dr. for 9 months, some new tissue growth, currently a culture was done and revealed,serratia, psuedomonas, and strep. He is allergic to pennicillin, what medication will attack all three of these bacterias. Can this be a home treatment or hospitalization on IV. Is Cipro a possibility?